WO2009079134A3 - Gamma ray tool response modeling - Google Patents

Gamma ray tool response modeling Download PDF

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Publication number
WO2009079134A3
WO2009079134A3 PCT/US2008/083600 US2008083600W WO2009079134A3 WO 2009079134 A3 WO2009079134 A3 WO 2009079134A3 US 2008083600 W US2008083600 W US 2008083600W WO 2009079134 A3 WO2009079134 A3 WO 2009079134A3
Authority
WO
WIPO (PCT)
Prior art keywords
detector
gamma ray
simulation
tool
function
Prior art date
Application number
PCT/US2008/083600
Other languages
French (fr)
Other versions
WO2009079134A2 (en
Inventor
Hezhu Yin
Pingjun Guo
Jinjuan Zhou
Original Assignee
Exxonmobil Upstream Research Company
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Exxonmobil Upstream Research Company filed Critical Exxonmobil Upstream Research Company
Priority to US12/679,644 priority Critical patent/US8731888B2/en
Priority to AU2008338844A priority patent/AU2008338844B2/en
Priority to RU2010129848/28A priority patent/RU2475784C2/en
Priority to BRPI0820898-0A priority patent/BRPI0820898B1/en
Priority to EP08862964.7A priority patent/EP2238477A4/en
Priority to CA2703747A priority patent/CA2703747C/en
Publication of WO2009079134A2 publication Critical patent/WO2009079134A2/en
Publication of WO2009079134A3 publication Critical patent/WO2009079134A3/en

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V5/00Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity
    • G01V5/04Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging
    • G01V5/06Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging for detecting naturally radioactive minerals
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B49/00Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V11/00Prospecting or detecting by methods combining techniques covered by two or more of main groups G01V1/00 - G01V9/00
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00Computer-aided design [CAD]
    • G06F30/20Design optimisation, verification or simulation
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2111/00Details relating to CAD techniques
    • G06F2111/10Numerical modelling

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geometry (AREA)
  • General Engineering & Computer Science (AREA)
  • Evolutionary Computation (AREA)
  • Computer Hardware Design (AREA)
  • Fluid Mechanics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Measurement Of Radiation (AREA)

Abstract

Systems and methods which provide modeling or simulation of gamma ray (GR) tool response using a hybrid analytical and numerical technique are shown. Embodiments employ a GR tool simulation technique which provides gamma ray information simulated as a function of only the gamma particles which reach the detector without scattering. Embodiments utilize a discretization function to determine the gamma particles which would reach a point detector from each unit volume source of an investigation domain without scattering. Embodiments further utilize the foregoing discretization function with respect to a plurality of point detectors, wherein the particular number and configuration of point detectors are selected to relatively accurately simulate the results of a particular GR detector configuration, such as line detector or volume detector configurations. Embodiments may be implemented using inexpensive and widely available computing platforms, such as personal computers, thereby facilitating economic and practical GR tool simulation.
PCT/US2008/083600 2007-12-19 2008-11-14 Gamma ray tool response modeling WO2009079134A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US12/679,644 US8731888B2 (en) 2007-12-19 2008-11-14 Gamma ray tool response modeling
AU2008338844A AU2008338844B2 (en) 2007-12-19 2008-11-14 Gamma ray tool response modeling
RU2010129848/28A RU2475784C2 (en) 2007-12-19 2008-11-14 Simulation of gamma-ray logging probe characteristics
BRPI0820898-0A BRPI0820898B1 (en) 2007-12-19 2008-11-14 METHODS AND SYSTEMS FOR MODELING OR SIMULATING ANSWER TO THE RANGE TOOL
EP08862964.7A EP2238477A4 (en) 2007-12-19 2008-11-14 Gamma ray tool response modeling
CA2703747A CA2703747C (en) 2007-12-19 2008-11-14 Gamma ray tool response modeling

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US818207P 2007-12-19 2007-12-19
US61/008,182 2007-12-19

Publications (2)

Publication Number Publication Date
WO2009079134A2 WO2009079134A2 (en) 2009-06-25
WO2009079134A3 true WO2009079134A3 (en) 2009-10-01

Family

ID=40796074

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/083600 WO2009079134A2 (en) 2007-12-19 2008-11-14 Gamma ray tool response modeling

Country Status (8)

Country Link
US (1) US8731888B2 (en)
EP (1) EP2238477A4 (en)
AU (1) AU2008338844B2 (en)
BR (1) BRPI0820898B1 (en)
CA (1) CA2703747C (en)
MY (1) MY165335A (en)
RU (1) RU2475784C2 (en)
WO (1) WO2009079134A2 (en)

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Also Published As

Publication number Publication date
CA2703747A1 (en) 2009-06-25
BRPI0820898A2 (en) 2015-06-23
US8731888B2 (en) 2014-05-20
MY165335A (en) 2018-03-21
BRPI0820898B1 (en) 2019-09-24
AU2008338844A1 (en) 2009-06-25
CA2703747C (en) 2017-01-17
RU2010129848A (en) 2012-01-27
EP2238477A4 (en) 2016-08-24
EP2238477A2 (en) 2010-10-13
RU2475784C2 (en) 2013-02-20
US20100204971A1 (en) 2010-08-12
WO2009079134A2 (en) 2009-06-25
AU2008338844B2 (en) 2013-09-05

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